Home / 28,881.15-39,855.49-16,134.54

Finding the Fourth Proportional to 28,881.15, 39,855.49 and 16,134.54

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Solution

The fourth proportional to 28,881.15, 39,855.49 and 16,134.54 is: 22,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.15 : 39,855.49 = 16,134.54 : x
  2. Step 2: Convert to fraction form
    28,881.15/39,855.49 = 16,134.54/x
  3. Step 3: Cross multiply
    28,881.15x = 39,855.49 × 16,134.54
  4. Step 4: Simplify right side
    28,881.15x = 643,049,997.62
  5. Step 5: Solve for x
    x = 643,049,997.62/28,881.15
  6. Step 6: Final answer
    x = 22,265.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.